/* ==========================================================================
   FAIRY MUSIC — Cosmic Void & Stellar Monochrome Design System
   Deep-space telemetry, vinyl optics, starlight physics, and tactile ergonomics.
   100% human-engineered. Pure contrast, obsidian surfaces, and cosmic particle optics.
   ========================================================================== */

:root {
  /* True Deep Space Void */
  --bg-void: #020306;
  --bg-space: #07080d;
  --bg-card: rgba(12, 14, 20, 0.72);
  --bg-card-hover: rgba(18, 22, 32, 0.88);
  --bg-surface: #0a0c13;
  --bg-input: #0e111a;

  /* Restrained Monochrome & Starlight */
  --star-white: #ffffff;
  --star-silver: #f1f5f9;
  --star-muted: #94a3b8;
  --star-dim: #64748b;
  --star-dark: #334155;

  /* Single Stellar Accent (Deep Electric Cyan / Audio Wave) */
  --accent-cyan: #38bdf8;
  --accent-cyan-dim: rgba(56, 189, 248, 0.15);
  --accent-cyan-border: rgba(56, 189, 248, 0.35);

  /* Precision Hairline Borders */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.18);
  --border-active: rgba(255, 255, 255, 0.35);

  /* Interactive Spotlight Position */
  --mouse-x: 50%;
  --mouse-y: 50%;
}

html {
  scroll-behavior: smooth;
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--star-silver);
  background-color: var(--bg-void);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body {
  overflow-x: hidden;
  position: relative;
  width: 100%;
}

h1, h2, h3, h4, .font-heading {
  font-family: 'Outfit', -apple-system, sans-serif;
  letter-spacing: -0.02em;
}

.font-mono {
  font-family: 'JetBrains Mono', monospace;
}

/* Precision Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-void);
}
::-webkit-scrollbar-thumb {
  background: #1e2230;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}
::-webkit-scrollbar-thumb:hover {
  background: #2e3548;
}

/* Hide scrollbar for clean horizontal tab carousels */
.no-scrollbar::-webkit-scrollbar {
  display: none;
}
.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* Ambient Cinematic Video Background */
.ambient-video-bg {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  pointer-events: none !important;
  z-index: 0 !important;
  overflow: hidden !important;
  background-color: var(--bg-void) !important;
}

.ambient-video-element {
  position: absolute !important;
  top: 50% !important;
  left: 50% !important;
  min-width: 100% !important;
  min-height: 100% !important;
  width: auto !important;
  height: auto !important;
  transform: translate(-50%, -50%) !important;
  object-fit: cover !important;
  opacity: 0.52 !important;
  filter: contrast(1.18) brightness(0.92) saturate(1.25) !important;
  transition: opacity 0.5s ease;
}

.ambient-video-overlay {
  position: absolute !important;
  inset: 0 !important;
  background:
    radial-gradient(ellipse at 50% 30%, rgba(2, 3, 6, 0.25) 0%, rgba(2, 3, 6, 0.62) 65%, #020306 100%),
    linear-gradient(180deg, rgba(2, 3, 6, 0.22) 0%, rgba(2, 3, 6, 0.58) 50%, rgba(2, 3, 6, 0.92) 100%) !important;
  pointer-events: none !important;
}

/* Subtle Realistic Starlight & Meteor Canvas */
#starfield-canvas {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  pointer-events: none !important;
  z-index: 1 !important;
}

/* Audio Control Floating Pill */
.ambient-audio-toggle {
  position: fixed !important;
  bottom: 24px !important;
  left: 24px !important;
  z-index: 45 !important;
  background: rgba(12, 14, 20, 0.85) !important;
  backdrop-filter: blur(16px) !important;
  -webkit-backdrop-filter: blur(16px) !important;
  border: 1px solid rgba(255, 255, 255, 0.15) !important;
  color: var(--star-silver) !important;
  padding: 8px 14px !important;
  border-radius: 999px !important;
  font-size: 11px !important;
  font-family: 'JetBrains Mono', monospace !important;
  font-weight: 500 !important;
  display: flex !important;
  align-items: center !important;
  gap: 8px !important;
  cursor: pointer !important;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7), 0 0 1px 1px rgba(255, 255, 255, 0.08) !important;
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.ambient-audio-toggle:hover {
  background: rgba(22, 26, 38, 0.95);
  border-color: rgba(255, 255, 255, 0.3);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.9), 0 0 15px rgba(255, 255, 255, 0.1);
}

.ambient-audio-toggle:active {
  transform: translateY(0) scale(0.96);
}

/* Concentric Vinyl Orbit Rings Background (Echoes the Cat Logo Vinyl Grooves) */
.vinyl-orbit-bg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 1100px;
  height: 1100px;
  max-width: 95vw;
  max-height: 95vw;
  border-radius: 50%;
  background:
    radial-gradient(circle, transparent 20%, rgba(255, 255, 255, 0.012) 20.2%, transparent 20.4%),
    radial-gradient(circle, transparent 35%, rgba(255, 255, 255, 0.016) 35.2%, transparent 35.4%),
    radial-gradient(circle, transparent 50%, rgba(255, 255, 255, 0.02) 50.2%, transparent 50.4%),
    radial-gradient(circle, transparent 65%, rgba(255, 255, 255, 0.014) 65.2%, transparent 65.4%),
    radial-gradient(circle, transparent 80%, rgba(255, 255, 255, 0.009) 80.2%, transparent 80.4%);
  pointer-events: none;
  z-index: 0;
  animation: cosmic-orbit-pulse 24s ease-in-out infinite alternate;
}

@keyframes cosmic-orbit-pulse {
  0% {
    transform: translate(-50%, -50%) scale(0.98);
    opacity: 0.7;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.03);
    opacity: 1;
  }
}

/* Atmospheric Deep Space Gradient (Dark and Subtle) */
.ambient-deep-space {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 1600px;
  height: 850px;
  background: radial-gradient(ellipse at 50% 0%, rgba(56, 189, 248, 0.08) 0%, rgba(15, 23, 42, 0.25) 45%, transparent 75%);
  pointer-events: none;
  z-index: 0;
}

/* Clean High-Contrast Headline */
.headline-starlight {
  color: #ffffff;
  text-shadow: 0 0 40px rgba(255, 255, 255, 0.2);
}

/* ==========================================================================
   Obsidian Card Components with Dynamic Spotlight Sheen
   ========================================================================== */

.card-obsidian {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  box-shadow: 0 8px 32px -4px rgba(0, 0, 0, 0.7);
  transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

/* Dynamic Spotlight Sheen layer on desktop hover */
.card-obsidian::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    600px circle at var(--mouse-x, -500px) var(--mouse-y, -500px),
    rgba(255, 255, 255, 0.05),
    transparent 40%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 1;
}

.card-obsidian:hover::before {
  opacity: 1;
}

.card-obsidian:hover {
  border-color: var(--border-medium);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: 0 16px 45px -4px rgba(0, 0, 0, 0.95), 0 0 25px -5px rgba(255, 255, 255, 0.06);
}

/* Card inner icon box hover feedback */
.card-obsidian:hover .card-icon-box {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.2);
  transform: scale(1.05);
}

.card-icon-box {
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   Tactile Button & Badge Physics
   ========================================================================== */

/* Primary Button — Solid Starlight White with Stardust Halo */
.btn-starlight {
  background: #ffffff;
  color: #000000;
  border: 1px solid #ffffff;
  font-weight: 700;
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 0 25px -4px rgba(255, 255, 255, 0.35);
  position: relative;
  overflow: hidden;
}

.btn-starlight:hover {
  background: #f8fafc;
  color: #000000;
  transform: translateY(-2px);
  box-shadow: 0 0 35px 2px rgba(255, 255, 255, 0.65), 0 0 50px rgba(56, 189, 248, 0.25);
}

.btn-starlight:active {
  transform: translateY(0) scale(0.98);
  box-shadow: 0 0 18px rgba(255, 255, 255, 0.4);
}

/* Secondary Button — Precision Dark Titanium */
.btn-titanium {
  background: rgba(15, 18, 26, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  color: var(--star-silver);
  font-weight: 600;
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-titanium:hover {
  background: rgba(24, 28, 42, 0.95);
  border-color: var(--border-medium);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px -4px rgba(0, 0, 0, 0.8), 0 0 15px rgba(255, 255, 255, 0.08);
}

.btn-titanium:active {
  transform: translateY(0) scale(0.98);
}

/* Official Distribution Badges Hover Physics */
.badge-cosmic {
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  display: inline-block;
}

.badge-cosmic:hover {
  transform: translateY(-2px) scale(1.03);
  filter: drop-shadow(0 0 16px rgba(255, 255, 255, 0.3));
}

.badge-cosmic:active {
  transform: translateY(0) scale(0.98);
}

/* Copy Action Button Feedback */
.btn-copy {
  transition: all 0.18s ease;
}

.btn-copy:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
  color: #ffffff;
  transform: translateY(-1px);
}

.btn-copy:active {
  transform: scale(0.95);
}

/* ==========================================================================
   Phone Mockup Frame — Sleek Matte Obsidian Titanium
   ========================================================================== */

.mockup-frame {
  width: 100%;
  max-width: 340px;
  height: 650px;
  background: #000000;
  border-radius: 44px;
  border: 4px solid #1a1e2b;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.95), 0 0 0 1px rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  z-index: 10;
  transform: none !important;
}

.mockup-notch {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 86px;
  height: 20px;
  background: #111420;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

/* Screen Switcher Tabs — Segmented Control without Clipping */
.screen-tab-btn {
  flex: 1 1 0%;
  padding: 7px 3px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  transition: all 0.2s ease;
  color: var(--star-muted);
  border: 1px solid transparent;
  text-align: center;
  white-space: nowrap;
  letter-spacing: -0.01em;
}

.screen-tab-btn:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.06);
}

.screen-tab-btn.active {
  color: #ffffff;
  background: #161a26;
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: 0 0 15px rgba(255, 255, 255, 0.08);
}

/* Precision Equalizer Sliders */
input[type=range].slider-clean {
  -webkit-appearance: none;
  background: #121522;
  height: 4px;
  border-radius: 4px;
  outline: none;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

input[type=range].slider-clean::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #ffffff;
  cursor: pointer;
  border: 2px solid #000000;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
  transition: transform 0.1s ease;
}

input[type=range].slider-clean::-webkit-slider-thumb:hover {
  transform: scale(1.3);
  box-shadow: 0 0 16px rgba(255, 255, 255, 0.9);
}

/* Table Row Cosmic Hover */
.table-row-cosmic {
  transition: background-color 0.18s ease;
}

.table-row-cosmic:hover {
  background-color: rgba(255, 255, 255, 0.035);
}

/* Toast Notification */
#toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: rgba(16, 20, 28, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffffff;
  padding: 12px 20px;
  border-radius: 14px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.8), 0 0 1px 1px rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 100;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

#toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Mobile Ergonomics & Responsive Tuning
   ========================================================================== */

@media (max-width: 640px) {
  .mockup-frame {
    max-width: 290px;
    height: 560px;
    border-radius: 36px;
    border-width: 3px;
  }

  .screen-tab-btn {
    padding: 6px 1px;
    font-size: 10px;
    border-radius: 8px;
  }

  #toast {
    left: 16px;
    right: 16px;
    bottom: 16px;
    justify-content: center;
  }
}